Trolley-wire hanger



(No Model.)

J. P. FAULKNER & R'. CAMPBELL. TROLLEY WIRE HANGER.

No. 590,141. Patented Sept. 14,1897.

WITNESSES A TTORIVEYS.

STATES PATENT Trice.

JOHN F. FAULKNER AND ROYER CAMPBELL, OF SAN ANTONIO, TEXAS.

TROLLEY-WIRE HANGER.

SPECIFICATION forming part of Letters Patent No. 590,141, datedSeptember 14, 1897.

Ap li ation filed March 8, 1897. Serial No. 626,560. (No model.)

To (LU whom it may concern: I

Be it known that we, JOHN F. FAULKNER and ROYER CAMPBELL, citizens ofthe United States, residing at San Antonio, in the county of Bexar andState of Texas, have invented new and useful Improvements inTrolleylVire Han gers,of which the following is so full, clear, andexact a description as will enable others skilled in the art to whichour invention appertains to make and use the same, reference being hadto the accompanying drawings, in which- Figure 1 is aperspective view ofthe hanger. Fig. 2 is a central section of the same. Fig. 3 is aperspective view of the several parts of the hanger detached from eachother. Fig. 4 is a sectional side view of the body or middle portion ofthe hanger.

The object of the invention is to provide a clamp for trolley-wires bythe use of which danger from broken insulator-bolts and con sequentdamage to the trolley and the wire and the span-wires will be entirelyavoided.

Another object of the invention is to provide a clamp for trolley-wireswhich may be easily and quickly adjusted by one not pal ticularlyskilled in the art.

The jaws A and B are attached to an insulator O by means of a screw D.The main jaw A (see Figs. 1 and 3) of the hanger has a curved lip 1 forsupporting a trolley-wire 2, and the smaller removable jaw B has acorresponding lip or flange 1*", fitting upon the said wire 2, so thatthe latter may be held firmly between the jaws.

The central portion 3 of the main jaw A is cylindrical and provided witha rectangular socket 4, Fig. 3, in its under side, a central threadedbore 5, and a reduced portion or tenon 6. For convenience ofdescription, the said part 3 will be termed a post. The recess or socket4 receives a corresponding tenon 7 on the jaw B, which tenon has abaseshoulder, as shown. A cylindricalsleeve 8, Fig. 3,'fits somewhatloosely on the cylindrical post 3 of jaw A and incloses also the tenon 7of jaw 13, the lower end of said sleeve 'shown resting on the shoulder 9of said tenon, as The bore 5 in post 3 receives the threaded end of thecylindrical screw D, whose head and body are secured in the insnlator C.

It is apparent that upon applying the rigid wire-suspending jaw A andremovable jaw B to a wire 2 and then rotating the insulator O the screwD will draw the parts A B together, so as to clamp the wire 2 firmlybetween the lips ,or flanges 1 and 1"-that is 'to say, the rigid jaw Ais drawn upward at the same time the movable jaw B is forced downward,which operation is caused by the sleeve 8 abutting, Fig. 4, the underside of the insulator C and the shoulder 9 of jaw B simultaneously,whereby the post 3, which is shorter than the sleeve 8, is allowed toslide up into the sleeve, while the latter resists upward movement ofjaw B.

The point which is usually first to breakin a trolley-clamp is the boltwhich fastens the insulator to the clamp. When this is the case, theclamp drops down and turns over on the wire and hangs there, a m enaceto the trolley, threatening its destruction,-its derailment, and thedestruction of the span-wire, and the possible fracture of thetrolley-pole, or even the trolley-wire. By the use of a clamp such ashas been hereinbefore described these things will be entirely obviated,as the clamp will drop down and turn over and the sleeve will drop off,leaving the jaws free to separate, when they will, by reason of thevibration of the wire, drop to the pavement. It will be observedthat thedip is very slight in the outer jaw, so that the slightest vibrationwill throw the clamp off the wire as soon as the locking device isreleased, as would be the case should the insulator-bolt become broken.

We claim- 1. In a trolley-clamp, the combination of a rigid jaw, havinga slight dip to receive the wire; with a sliding jaw, having a lip atits outer end to engage the trolley wire and adapted to slide upon therigid jaw and means for holding the two jaws together and for holdingthe sliding jaw into contact with the wire and for clamping the wirebetween the two jaws, the entire structure being such that any ruptureof the mechanism for holding the two jaws into contact with thetrolleywire, will cause the clamp to fall off from the trolley-wire byreason of itsown automatic separation, substantially as described.

2. In a clamp for trolley-wires, a rigid jaw provided with a post,recessed and provided with a screw-threaded hole; in combination with asliding jaw having a projection adapted to fit within a recess in thepost of the rigid jaw and provided with a shoulder and a sleeve adaptedto encircle the post on the rigid jaw and the projection or tenon on thesliding jaw,and abutting against the shoulder on the sliding jaw,substantially as and for the purposes described.

3. In a clamp for trolley-wires, a rigid jaw provided with a postrecessed and provided with a screw-threaded hole; in combination with asliding jaw having aprojc'ction adapted to fit within the recess in thepost on the rigid jaw and provided with a shoulder and a sleeve adaptedto encircle the post on the rigid jaw and the projection on the slidingjaw and abutting against the shoulder on the sliding jaw, the distancebetween the face of the shoulder and the upper end of the post beingless than the distance between the bottom of the collar and the top ofthe collar, substantially as described,whereby the clamp of theinsulator down upon the upper end of the collar will securely hold thewire, as described.

In testimony whereof we atlix on r signatu res in the presence of twowitnesses.

JOHN F. FAULKNER. ROYER CAMPBELL.

Witnesses:

J. B. FLANNERY, J12, W. L. STEVENS.

